CN111418282B - Soil-Straw Reversing Screening Device and Planter for No-till Sowing - Google Patents
Soil-Straw Reversing Screening Device and Planter for No-till Sowing Download PDFInfo
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- CN111418282B CN111418282B CN202010225495.3A CN202010225495A CN111418282B CN 111418282 B CN111418282 B CN 111418282B CN 202010225495 A CN202010225495 A CN 202010225495A CN 111418282 B CN111418282 B CN 111418282B
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- 239000010902 straw Substances 0.000 title claims abstract description 60
- 238000012216 screening Methods 0.000 title claims abstract description 36
- 238000009331 sowing Methods 0.000 title description 3
- 238000003971 tillage Methods 0.000 claims abstract description 135
- 230000007246 mechanism Effects 0.000 claims abstract description 64
- 238000010899 nucleation Methods 0.000 claims abstract description 30
- 230000005540 biological transmission Effects 0.000 claims abstract description 29
- 238000000926 separation method Methods 0.000 claims abstract description 23
- 239000002689 soil Substances 0.000 abstract description 18
- 238000004140 cleaning Methods 0.000 abstract description 2
- 239000000725 suspension Substances 0.000 description 7
- 241000721671 Ludwigia Species 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
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- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000009313 farming Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 240000005702 Galium aparine Species 0.000 description 1
- 235000014820 Galium aparine Nutrition 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B49/00—Combined machines
- A01B49/04—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B49/00—Combined machines
- A01B49/04—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools
- A01B49/06—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools for sowing or fertilising
- A01B49/065—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools for sowing or fertilising the soil-working tools being actively driven
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
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- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Working Implements (AREA)
Abstract
The invention relates to the technical field of straw separation equipment, in particular to a soil-straw reverse rotation screening device and a seeder for no-tillage seeding, which comprise a rotary tillage mechanism and a separation screen, wherein the rotary tillage mechanism is arranged behind a tractor and is connected with a power output shaft of the tractor; the rotary tillage mechanism comprises a rotary tillage shaft and rotary tillage blades arranged on the rotary tillage shaft, and the rotary tillage mechanism is used for reverse rotary tillage operation; the separating screen is connected with a separating screen transmission mechanism, the separating screen transmission mechanism is used for driving the separating screen to swing in a reciprocating manner, and the reference axis of the reciprocating swing of the separating screen is parallel to the rotary tillage shaft; the separating screen is positioned at the rear part of the rotary tillage mechanism. Because the rotary tillage mechanism in the soil-straw reverse rotation screening device is in reverse rotation operation, the rotary tillage shaft and the separating screen are arranged side by side, and the separating screen is positioned behind the rotary tillage mechanism, the rotary tillage mechanism can throw soil to the separating screen, and the separating screen can swing back and forth, the separating screen can effectively separate soil from straw stubbles, thereby being convenient for cleaning seed beds and improving the seeding quality.
Description
Technical Field
The invention relates to the technical field of straw separation equipment, in particular to a soil-straw reverse-rotation screening device for no-tillage seeding and a seeding machine.
Background
Years of research show that the protective farming technology can reduce water erosion and wind erosion of soil and prevent water and soil loss by covering the ground surface with straw stubbles, but the protective farming has the problems of easy congestion and poor machine trafficability in the ditching process of a seeding machine due to large straw coverage, and the seed bed straws are mixed into the soil after ditching, so that the seeds fall above the straws to reduce the germination rate of the seeds. There is therefore a need for a device that can achieve separation of straw from soil to improve the throughput of the planter while providing a good seedbed for the seeds.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
The invention provides a soil-straw reverse rotation screening device for no-tillage seeding, which comprises a rotary tillage mechanism and a separating screen, wherein the rotary tillage mechanism is arranged behind a tractor and is connected with a power output shaft of the tractor; the rotary tillage mechanism comprises a rotary tillage shaft and rotary tillage blades arranged on the rotary tillage shaft, and the rotary tillage mechanism is used for reverse rotary tillage operation; the separating screen is connected with a separating screen transmission mechanism, the separating screen transmission mechanism is used for driving the separating screen to swing in a reciprocating manner, and a reference axis of the separating screen swinging in a reciprocating manner is parallel to the rotary tillage shaft; the separating screen is positioned behind the rotary tillage mechanism.
In one embodiment, the separating screen comprises a supporting frame, the supporting frame is connected with the separating screen transmission mechanism, the supporting frame is connected with a plurality of grid bars, the grid bars are parallel to each other, and a straw stubble outlet is arranged between the supporting frame and the grid bars.
In one embodiment, the screen further comprises anti-slip ribs; the anti-skid ribbed plates are connected with the grid bars and are perpendicular to a plane formed by the grid bars.
In one embodiment, the anti-slip rib includes a first anti-slip rib and a second anti-slip rib, the second anti-slip rib being located between the first anti-slip rib and the rotary tillage mechanism; the included angle between the first anti-skid rib plate and the length direction of the grid is smaller than the included angle between the second anti-skid rib plate and the length direction of the grid.
In one embodiment, the number of the separating screen is multiple, the rotary tillage blades are multiple pairs, the separating screens are arranged in parallel, and each separating screen corresponds to one pair of the rotary tillage blades in the longitudinal direction.
In one embodiment, the shaker screen drive mechanism includes a drive sprocket, a driven sprocket, and a first crankshaft; the driving chain wheel is arranged on the rotary tillage shaft; the driven chain wheel is arranged on the first crankshaft; the first crankshaft is rotatably connected with the separating screen.
In one embodiment, the shaker screen drive mechanism further comprises a second crankshaft rotationally coupled to the shaker screen; the second crankshaft is arranged side by side with the first crankshaft, the first crankshaft is located between the second crankshaft and the tractor, and the position of the second crankshaft is higher than that of the first crankshaft.
In one embodiment, the rotary tillage shafts comprise a left rotary tillage shaft and a right rotary tillage shaft, a gearbox is arranged between the left rotary tillage shaft and the right rotary tillage shaft, an input shaft of the gearbox is connected with a power output shaft of the tractor, and the left rotary tillage shaft and the right rotary tillage shaft are respectively connected with an output shaft of the gearbox; the left rotary tillage shaft or the right rotary tillage shaft is fixedly connected with the driving chain wheel.
In one embodiment, the left rotary tillage shaft is provided with a plurality of left rotary tillage blades which are arranged at equal intervals along the left rotary tillage shaft; the right rotary tillage shaft is provided with a plurality of right rotary tillage blades, and the right rotary tillage blades are arranged at equal intervals along the right rotary tillage shaft.
The invention provides a seeding machine, which comprises the soil-straw reverse-rotation screening device for no-tillage seeding.
The invention has the beneficial effects that: because the rotary tillage mechanism of the soil-straw reverse rotation screening device is operated in a reverse rotation mode, the rotary tillage shaft and the separating screen are arranged side by side, and the separating screen is positioned above the rear portion of the rotary tillage mechanism, the rotary tillage mechanism can throw soil to the separating screen, and the separating screen can swing back and forth, so that the separating screen can effectively separate soil from straw stubbles, seed beds are cleaned, and the seeding quality is improved.
Drawings
Fig. 1 is a schematic perspective view of a seed planter according to an embodiment of the present invention;
fig. 2 is a plan view of a seeding machine according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a frame of the sowing machine of the embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a rotary tillage mechanism of the soil-straw reversing screening device of the embodiment of the invention;
FIG. 5 is a schematic structural diagram of one of the separating screens of the soil-straw reversing screening device according to the embodiment of the invention;
FIG. 6 is another schematic structural view of a separating screen of the soil-straw reversing screening device according to the embodiment of the invention;
FIG. 7 is a schematic view of another configuration of a separating screen of the soil-straw reversing screening device according to the embodiment of the present invention;
description of reference numerals: 1. a frame; 11. a first cross member; 12. a second cross member; 13. a third cross member; 14. a fourth cross member; 15. a first stringer; 16. a second stringer; 17. a third stringer; 18. a fourth stringer; 19. a suspension device; 110. a first hanging plate; 111. a first hanging plate shaft hole; 112. a front axle hole of the second hanging plate; 113. a rear shaft hole of the second hanging plate; 114. a second hanging plate; 2. a gearbox; 3. a rotary tillage mechanism; 31. a left rotary tillage shaft; 32. a right rotary tillage shaft; 33. a left rotary blade; 34. a right rotary blade; 4. a soil-straw reverse-rotation screening device; 41. separating and screening; 42. a first crankshaft; 43. a second crankshaft; 44. connecting blocks; 45. connecting block shaft holes; 46. grid bars; 47. a support frame; 48. an anti-slip rib plate; 481. the first anti-slip rib 481; 482. a second anti-slip rib plate; 49. a guard plate; 410. a straw residue outlet; 5. a sprocket; 6. a furrow opener; 7. seeding a pipe; 8. a press wheel; 9. and (5) a seed box.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The first aspect of the invention provides a soil-straw reverse rotation screening device for no-tillage seeding. As shown in fig. 1 to 7, the soil-straw reverse-rotation screening device comprises a rotary tillage mechanism 3 and a separating screen 41, wherein the rotary tillage mechanism 3 is arranged at the rear of a tractor (not shown in the figure) and is connected with a power output shaft of the tractor; the rotary tillage mechanism 3 comprises a rotary tillage shaft and rotary tillage blades arranged on the rotary tillage shaft, and the rotary tillage mechanism 3 is used for reverse rotary tillage operation; the separating screen 41 is connected with a separating screen transmission mechanism, the separating screen transmission mechanism is used for driving the separating screen 41 to swing in a reciprocating manner, and the reference axis of the reciprocating swing of the separating screen 41 is parallel to the rotary tillage shaft; the separating screen 41 is located behind the rotary tilling mechanism 3.
Because the rotary tillage mechanism 3 of the screening device is operated in a reverse rotation mode, the rotary tillage shaft and the separating screen 41 are arranged side by side, and the separating screen 41 is positioned behind the rotary tillage mechanism 3, the rotary tillage mechanism 3 can throw soil to the separating screen 41, and the separating screen 41 can swing in a reciprocating mode, so that the separating screen 41 can effectively separate soil from straw stubbles, seed beds are cleaned, and the seeding quality is improved.
In addition, because the rotary tillage mechanism 3 carries out the reverse rotation operation, the straw burying rate of the reverse rotation operation is lower than that of the forward rotation operation, the ground surface in the tillage width is smoother than that of the forward rotation operation, and the soil crushing performance of the reverse rotation is obviously better than that of the forward rotation operation.
In one embodiment, the separating screen 41 comprises a support frame 47, the support frame 47 is connected to the separating screen drive mechanism, and the support frame 47 is provided with a straw stubble outlet 410.
In one embodiment, a shield 49 is provided around the support frame 47; the below of braced frame 47 is equipped with connecting block 44, and connecting block 44 is equipped with connecting block shaft hole 45, and connecting block shaft hole 45 is used for installing the transmission shaft of separation sieve drive mechanism.
In one embodiment, the support frame 47 is connected to a plurality of parallel arranged grills 46; the grid bars 46 are provided with anti-skid rib plates 48; the non-slip ribs 48 are perpendicular to the plane formed by the bars 46. Because the separating screen 41 is provided with the anti-slip rib plate 48, when the separating screen transmission mechanism drives the separating screen 41 to swing towards the rear side of the tractor, the anti-slip rib plate 48 can reduce the slip of the soil and the straw stubble.
In one embodiment, the anti-slip rib 48 includes a first anti-slip rib 481 and a second anti-slip rib 482, and the second anti-slip rib 482 is located between the first anti-slip rib 481 and the rotary tillage mechanism 3; the angle between the first anti-slip rib 481 and the longitudinal direction of the grid 46 is smaller than the angle between the second anti-slip rib 482 and the longitudinal direction of the grid 46.
As shown in fig. 5, in one embodiment, the number of the separating screen 41 is plural, the rotary blades are plural pairs, the plural separating screens 41 are arranged in parallel, and each separating screen 41 corresponds to a pair of rotary blades in the longitudinal direction.
In one embodiment, the shaker screen drive mechanism includes a drive sprocket, a driven sprocket, and a first crankshaft 42; the driving chain wheel is arranged on the rotary tillage shaft; the driven sprocket is arranged on the first crankshaft 42; the first crankshaft 42 is rotatably connected to the separating screen 41. In this case, the separating screen transmission mechanism uses the rotary tillage shaft as a power source, so that the structure of the whole soil-straw reverse rotation screening device 4 is simpler and more reliable, but the separating screen transmission mechanism does not need to be connected to the rotary tillage shaft, a separate power source (such as a motor and the like) can be arranged for the separating screen transmission mechanism, and the separating screen transmission mechanism can also be connected to a power output shaft of a tractor. The embodiment utilizes the crankshaft to lead the separating screen 41 to swing in a reciprocating way, has the advantages of simple and reliable structure, low manufacturing cost and the like, but can also lead the separating screen 41 to swing in a reciprocating way by using other structures (such as a four-bar mechanism and the like) according to the requirement; for example, the separating screen transmission mechanism may include a cam for rotation by the power source, the separating screen 41 being connected to the cam, the cam being used to reciprocate the separating screen 41. The advantage of connecting the first crankshaft 42 and the rotary tillage shaft by a chain transmission is that the transmission distance is large, the reliability is high, but the rotary tillage shaft and the first crankshaft 42 can be connected by a belt transmission or a gear transmission according to requirements.
As shown in fig. 5 and 6, a plurality of separating screens 41 are connected to respective segments of the first crankshaft 42 so as to be staggered in the lateral direction. The separating screen 41 is arranged in a staggered mode by means of the shape of the crankshaft, so that the weight can be balanced, larger vibration is prevented from occurring in the working process, the rotating speed of the crankshaft is increased, and the screening efficiency is improved.
In one embodiment, the separating screen drive further comprises a second crankshaft 43, the second crankshaft 43 being in rotational communication with the separating screen 41; the second crankshaft 43 is arranged side by side with the first crankshaft 42, the first crankshaft 42 is located between the second crankshaft 43 and the tractor, and the position of the second crankshaft 43 is higher than that of the first crankshaft 42. Because the first crankshaft 42 and the second crankshaft 43 are arranged side by side (i.e. arranged in parallel), the second crankshaft 43 is positioned at the rear upper part of the first crankshaft 42, the plane where the separating screen 41 is positioned is inclined towards the rear upper part, and the straws continuously move towards the rear upper part of the separating screen 41 in the reciprocating swing, thereby enhancing the separating effect of the soil and the straw residues.
In one embodiment, the second crankshaft 43 is located at the rear upper part of the first crankshaft 42, and the straw residue outlet 410 is arranged at the right upper part of the supporting frame 47. Thus, the straw can more smoothly fall back to the row from the straw residue outlet 410 in the process of moving the straw to the rear upper part of the separating screen 41.
In one embodiment, the supporting frame 47 is fixedly connected with a first connecting block and a second connecting block which are arranged in parallel in the front-rear direction, the shaft hole of the first connecting block is rotatably connected with the first crankshaft 42, and the shaft hole of the second connecting block is rotatably connected with the second crankshaft 43. Specifically, the number of the first connecting blocks is multiple, and the shaft hole of each first connecting block is coaxially arranged; the number of the second connecting blocks is multiple, and the shaft holes of each second connecting block are coaxially and coaxially arranged.
In one embodiment, the first and second crankshafts 42, 43 are mounted to the second clevis front and rear shaft holes 112, 113, respectively.
In one embodiment, the rotary tillage mechanism 3 comprises a left rotary tillage shaft 31 and a right rotary tillage shaft 32, the left rotary tillage shaft 31 and the right rotary tillage shaft 32 are symmetrically arranged; a gearbox 2 is arranged between the left rotary tillage shaft 31 and the right rotary tillage shaft 32, an input shaft of the gearbox 2 is connected with a power output shaft of a tractor, and the left rotary tillage shaft 31 and the right rotary tillage shaft 32 are respectively connected with an output shaft of the gearbox 2; the left rotary tillage shaft 31 or the right rotary tillage shaft 32 is fixedly connected with a driving sprocket.
In one embodiment, the outer side of the right rotary tilling shaft 32 is fixedly connected with the sprocket 5 through a key.
As shown in fig. 4, in one embodiment, the left rotary tillage shaft 31 is provided with a plurality of left rotary blades 33, and the left rotary blades 33 are arranged at equal intervals along the left rotary tillage shaft 31; the right rotary tillage shaft 32 is provided with a plurality of right rotary tillage blades 34, and the right rotary tillage blades 34 are arranged at equal intervals along the right rotary tillage shaft 32, thereby facilitating the realization of banded rotary tillage.
Specifically, the outer sides of the left rotary tillage shaft 31 and the right rotary tillage shaft 32 are respectively in rotary connection with the first hanging plate 110 through bearings.
In one embodiment, the number of the left-handed blades 33 and the number of the right-handed blades 34 are three.
In one embodiment, the soil-straw reversing screening device 4 comprises a suspension device 19, the suspension device 19 being adapted to be connected to a tractor (not shown).
As shown in fig. 1 to 3, a second aspect of the present invention provides a seeding machine comprising the soil-straw reverse screening device 4. Specifically, the seeder also comprises a gearbox 2 arranged on the frame 1; the gearbox 2 is used for transmitting the power of the tractor to the rotary tillage mechanism 3; the reverse rotation device is provided with a rotary tillage shaft which is connected with a separating screen 41 of the soil-straw reverse rotation screening device 4 through a separating screen transmission mechanism. The rotary tillage shaft is connected with the separating screen 41 of the soil-straw reverse-rotation screening device 4, so that the rotary tillage shaft becomes a power source of the separating screen 41, the separating screen 41 and the rotary tillage shaft can move synchronously, and the structure saves more space; however, a separating screen transmission mechanism using another power source may be provided for the separating screen 41, for example, the separating screen 41 may be connected to an output shaft of a motor, or the separating screen 41 may be connected to a power output shaft of a tractor (not via a rotary tilling shaft).
In one embodiment, the shaker screen drive mechanism is a chain drive; one side of the rotary tillage shaft is provided with a driving chain wheel, a crankshaft of the soil-straw reverse rotation screening device 4 is connected with a driven chain wheel, and a driving link is connected with the driven chain wheel through a transmission chain. The rotary tillage shaft and the crankshaft of the soil-straw reverse rotation screening device 4 can also be connected through belt transmission, gear transmission and other modes according to requirements.
In one embodiment the frame 1 comprises a plurality of beams and suspension means 19 provided on the beams, the suspension means 19 being adapted to be connected to a tractor (not shown in the figures). Specifically, the frame 1 comprises a first cross beam 11, a second cross beam 12, a third cross beam 13 and a fourth cross beam 14 which are parallel to each other, and a first longitudinal beam 15, a second longitudinal beam 16, a third longitudinal beam 17 and a fourth longitudinal beam 18 which are perpendicular to the first cross beam 11, the second cross beam 12, the third cross beam 13 and the fourth cross beam 14, wherein a suspension device 19 is fixedly arranged on the first cross beam 11 and the second cross beam 12; the first hanging plate 110 and the second hanging plate 114 are fixedly connected to the first longitudinal beam 15 and the fourth longitudinal beam 18 through bolts respectively; wherein, first link plate 110 is equipped with first link plate shaft hole 111, and second link plate 114 is equipped with shaft hole 112 behind shaft hole 113 before the second link plate, and first link plate shaft hole 111 is used for installing the rotary tillage axle, and shaft hole 112 behind shaft hole 113 is used for installing first bent axle 42 and second bent axle 43 respectively before the second link plate.
As shown in fig. 1, in one embodiment, the seeder further comprises a furrow opener 6 and a press wheel 8 which are arranged behind the soil-straw reverse-rotation screening device 4; the furrow opener 6 is arranged behind the soil-straw reverse-rotation screening device 4. Specifically, 6 press wheels 8 are respectively arranged in longitudinal alignment with 6 furrow openers 6.
In one embodiment, the press wheel 8 is fixedly arranged to the fourth beam 14.
In one embodiment, the seeder also comprises a plurality of seeding pipes 7, wherein the seeding pipes 7 are arranged behind the soil-straw reversal screening device 4 side by side; the sowing pipe 7 is positioned between the furrow opener 6 and the press wheel 8.
In one embodiment, the seeding machine further comprises a seed box 9, the seed box 9 being arranged on the first longitudinal beam 15 and the fourth longitudinal beam 18, directly above the furrow opener 6.
When the seeder works, the power output by the tractor is transmitted to the rotary tillage shafts (comprising the left rotary tillage shaft 31 and the right rotary tillage shaft 32 in some embodiments) through the gearbox 2 to implement banded rotary tillage. The left rotary blade 33 and the right rotary blade 34 are rotated counterclockwise (i.e., in a reverse direction) to throw the soil into the rear separating screen 41. In some embodiments, the planter is attached to the rear of the tractor by a suspension 19. The separating screen 41 has a certain angle with the horizontal plane in the front-rear direction, and the straw stubble outlet 410 of the separating screen 41 is arranged at the upper rear (relative to the tractor), so that the separating effect of the separating screen 41 is better. In some embodiments, the left-handed tillage shaft 31 or the right-handed tillage shaft 32 transmits power to the first crankshaft 42 through a transmission device, the first crankshaft 42 drives the separation screen 41 to swing back and forth at a certain angle, soil falls to the ground during the swing, and straw continuously moves towards the back upper part of the separation screen 41; because the anti-slip rib plates 48 are arranged inside the separating screen 41, the anti-slip rib plates 48 and the grid bars 46 have a certain angle, and the angle is increased from front to back, when the crankshaft drives the separating screen 41 to swing towards the rear upper side of the tractor, the anti-slip rib plates 48 can throw soil and straw stubbles back to the space between rows from the straw stubbles outlet 410, and meanwhile, the anti-slip rib plates 48 can reduce the slip-down of the soil and the straw stubbles.
The seeder provided by the second aspect of the invention is suitable for seeding crops such as wheat, corn and the like, and can effectively realize effective separation of soil and straw stubble, thereby cleaning seed beds and improving seeding quality.
Although the invention has been described in detail hereinabove with respect to a general description and specific embodiments thereof, it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (8)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010225495.3A CN111418282B (en) | 2020-03-26 | 2020-03-26 | Soil-Straw Reversing Screening Device and Planter for No-till Sowing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010225495.3A CN111418282B (en) | 2020-03-26 | 2020-03-26 | Soil-Straw Reversing Screening Device and Planter for No-till Sowing |
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| CN111418282A CN111418282A (en) | 2020-07-17 |
| CN111418282B true CN111418282B (en) | 2021-07-02 |
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| CN112145874A (en) * | 2020-09-27 | 2020-12-29 | 农业农村部南京农业机械化研究所 | Adjustable rack structure |
| CN116210382B (en) * | 2023-05-09 | 2023-07-11 | 吉林省农业科学院 | Composite transmission structure for soybean straw stubble cleaning and conveying |
Citations (6)
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